Alor is the largest island in the Alor Archipelago and is one of the 92 officially listed outlying islands of Indonesia. It is located at the eastern end of the Lesser Sunda Islands chain that runs through southeastern Indonesia, which from the west include such islands as Bali, Lombok, Sumbawa, Komodo, and Flores.
The Mentawai Islands Regency is a regency of West Sumatra Province which consists of a chain of about a hundred islands and islets approximately 150 kilometres off the western coast of Sumatra in Indonesia. They cover a land area of 6,033.76 km2 and had a population of 76,173 at the 2010 Census and 87,623 at the 2020 Census; the official estimate as of mid-2023 was 95,068.
Anambas Islands Regency is an island regency in the Riau Islands Province, Indonesia, located in the Natuna Sea. The regency consists of 255 islands, including five outer islands that are important for Indonesia's sovereignty boundaries, namely: Tokong Berlayar Island, Tokong Nanas Island, Mangkai Island, Damar Island, and Malangbiru Island. Anambas Islands Regency located 150 nautical miles northeast of Batam Island in the Natuna Sea between the Malaysian Peninsula to the west and the island of Borneo to the east. Geographically part of the Tudjuh Archipelago. This island regency covers a land area of approximately 661.47 square kilometres (255.39 sq mi) spread over an area of approximately 46,664 km² of water. The regency had a population of around 37,411 at the 2010 Census. and 47,402 at the 2020 Census; the official estimate as at mid 2023 was 50,140. The administrative centre is at Tarempa on Siantan Island.
The Lingga Regency is a group of 600 islands in Indonesia, located south of Singapore and along both sides of the equator, off the eastern coast of Riau Province on Sumatra island. They are due south of the populated Riau Archipelago, known for the industrial island of Batam and the tourist-frequented island of Bintan, although the Lingga Islands themselves are rarely visited due to the infrequent local transportation. The equator goes through the northern tip of Lingga Island, the main island in the archipelago.
Bengkalis Regency is a regency of Indonesia in Riau Province. The regency was originally established in 1956 and then included most of the northern part of the province, but on 4 October 1999 it was divided up, with most of the territory being split off to form the new Rokan Hilir Regency, Siak Regency and the city of Dumai. On 19 December 2008 a further five districts were removed to create the new Meranti Islands Regency, leaving eight districts in the Bengkalis Regency. These eight districts has increased since 2010 to eleven by the splitting of existing districts on the Sumatran mainland.
Sikka is a regency within East Nusa Tenggara province, Indonesia, on the island of Flores. It is bordered to the west by Ende Regency and to the east by East Flores Regency. It covers an area of 1,675.36 km2 and had a population of 300,301 at the 2010 census and 321,953 at the 2020 Census; the official estimate as at mid 2023 was 337,011. The capital is the town of Maumere, which comprises the districts of Alok Barat, Alok and Alok Timur.
Ende Regency is a regency on the island of Flores, within East Nusa Tenggara Province of Indonesia. The regency covers an area of 2,091.19 km2, and it had a population of 260,605 at the 2010 Census and 270,763 at the 2020 Census; the official estimate as at mid 2023 was 280,328. It is bordered to the west by Nagekeo Regency and to the east by Sikka Regency, while the Flores Sea lies to the north and the Savu Sea to the south.
Lebak Regency is a regency of Banten province, Indonesia. It is located on the island of Java. The regency has an area of 3,481.35 km2 and had a population of 1,204,095 at the 2010 census and 1,386,793 at the 2020 census; the official estimate as at mid 2023 was 1,480,593. The town of Rangkasbitung in the north of the regency is the administrative centre. The regency is bordered by the Pandeglang Regency to the west, the Serang Regency to the north, and the Tangerang Regency to the north-east, by the Bogor and Sukabumi regencies to the east, and by the Indian Ocean to the south.
Bintan Regency is an administrative area in the Riau Islands Province of Indonesia. Bintan Regency includes all of Bintan Island and also includes many outlying islands including the Tambelan Archipelago and Badas Islands situated between Bintan and West Kalimantan; altogether there are 273 islands comprising the regency.
West Sumba Regency is a regency in East Nusa Tenggara Province of Indonesia. Established in 1958, the regency was considerably reduced on 2 January 2007 with the creation of new Regencies on Sumba Island under Law UU No.16 of that year. Its area is now 721.96 km2, and its population was 110,993 at the 2010 census and 145,097 at the 2020 Census; the official estimate as at mid 2023 was 150,868. It has its seat (capital) in (Kota) Waikabubak.
Alor Regency is a regency in East Nusa Tenggara (NTT) province of Indonesia. Established in 1958, Alor Regency administers the Alor Archipelago with its seat (capital) in Kalabahi on Alor Island.
Central Sumba Regency is a regency in East Nusa Tenggara of Indonesia. The new Central Sumba Regency was established on the island of Sumba when West Sumba Regency was split into two regencies on 22 May 2007 and a further Regency was created in Central Sumba from parts of both West Sumba and East Sumba Regencies. The new Regency covers 1,845.28 km2 and had a population of 62,485 at the 2010 Census and 85,482 at the 2020 Census; the official estimate as at mid 2023 was 91,531. The seat (capital) of its government is located at Waibakul.
The Karimun Regency is located in the Riau Islands Province, Indonesia. Besides the central island of Great Karimun, the regency also includes the island of Kundur and over 240 lesser islands. The district covers a land area of 1,339.9 km2 and a sea area of 6,460 km2, and its population was 212,561 at the 2010 census and 253,457 at the 2020 census; the official estimate as at mid 2023 was 270,121.
Nias Selatan Regency is a regency in North Sumatra province, Indonesia, created on 25 February 2003 by the division of the existing Nias Regency. The regency covers a land area of 2,487.99 square kilometres and according to the 2010 census had a population of 289,708; the 2020 Census showed a population of 360,531, while the official estimate for mid 2023 was 368,834. Its administrative centre is the port of Teluk Dalam. Apart from the southern portion of Nias Island, the regency also includes the smaller Batu Islands to the south, lying between Nias and Siberut; these islands occupy nearly half of the land area of the Regency, but have just 9% of its population.
East Sumba Regency is geographically the largest of the four regencies which divide the island of Sumba, within East Nusa Tenggara Province of Indonesia. It occupies 62% of the entire island, being much less densely populated than the western third. The town of Waingapu is the capital of East Sumba Regency. The population of East Sumba Regency was 227,732 at the 2010 Census and 244,820 at the 2020 Census; the official estimate as at mid 2022 was 255,498.
East Flores Regency is a regency in East Nusa Tenggara province of Indonesia. Established in 1958, the regency has its seat (capital) in Larantuka on Flores Island. It covers a land area of 1,812.65 km2, and it had a population of 232,605 as of the 2010 census and 276,896 at the 2020 Census; the official estimate as of mid-2023 was 289,376. The regency encompasses the eastern tip of the island of Flores, together with all of the adjacent islands of Adonara and Solor to the east of Flores, with some much smaller offshore islands. On 4 October 1999, the island of Lembata at the eastern end of the Solor Archipelago was separated from the East Flores Regency to create its own Regency.
Manggarai Regency is a regency in East Nusa Tenggara province of Indonesia, situated on the island of Flores. Established in 1958 to encompass the 6,924.18 km2 area of the lands of the indigenous Manggarai people, the regency was reduced in area and in population by the separation of the more western districts to form West Manggarai Regency on 25 February 2003 and of the more eastern districts to form East Manggarai Regency on 17 July 2007.
Lembata Regency is a regency in East Nusa Tenggara province of Indonesia. Established on 4 October 1999 from the most easterly part of East Flores Regency, the regency covers the island of Lembata, together with three small offshore islands together forming the eastern part of the Solor Archipelago, and has its administrative seat (capital) in Lewoleba. The population of the Regency was 117,829 at the 2010 decennial census and at the 2020 census was 135,930; the official estimate as at mid 2023 was 137,812.
East Manggarai Regency is a regency in East Nusa Tenggara province of Indonesia. Established on 17 July 2007, the regency has its seat (capital) in the town of Borong. It covers a land area of 2,438.68 km2. The population at the 2010 Census was 252,754, and at the 2020 Census was 275,603; the official estimate as at mid 2023 was 310,822.
Meranti Islands is an archipelago, most of which forms a regency (kabupaten) of Riau Province and lies off the eastern coast of the island of Sumatra, Indonesia. It was created on 19 December 2008 by the separating of these large islands from the mainly mainland regency of Bengkalis. The regency comprises the islands of Tebing Tinggi, Rangsang, Padang, and Merbau, together with minor offshore islands, but does not include Bengkalis Island to the north, which is geographically part of the archipelago but remains within Bengkalis Regency. The principal town is Selat Panjang on Tebing Tinggi Island. The regency covers an area of 4,769.53 km2 and had a population of 176,290 at the 2010 Census and 206,116 at the 2020 Census; the official estimate as of mid-2023 was 211,611.
Indonesia 
East Nusa Tenggara 
